Did Christ preexist? What is preexistence? Do human beings preexist? J. Dan Gill tells his audience that true human beings do not preexist themselves. If Jesus was a true man then he did not preexist in a literal sense. J. Dan Gill is Editor in Chief of 21st Century Reformation. He is a frequent speaker and has authored many biblical articles and theological papers. Dan Gill is the author of “The One – In Defense of God” a book which makes the biblical case for non-trinitarian “absolute” Christian monotheism.